Granted Patent
Utility
US 4,435,256 · App. 06/510,115
Process for making potassium ferrate [Fe(VI)] by the electrochemical formation of sodium ferrate
Inventor:
J. Paul Deininger
Patented Case
View Patent ↗
Granted: Mar 6, 1984
Filed: Jul 1, 1983
Inventor
J. Paul Deininger
Assignee (at issue)
Olin Corporation
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.